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256 Posts
Hey ladies and gents.
I have a '89 Sedan Deville with the 4.5. Ever since I got it, it'd have the high initial idle thing that we all have. it'll also speed u prandomly as well. I'll go through a full breakdown of what it does so that I'll know exactly what to fix so it doesn't cost me a billion dollars. lol.
When I got to turn on the car, sometimes the pedal will pulste it's self as if it's trying to prime a carbeurator. It's obviously FI though. When it does this, the idle will skyrocket. Every once in a while it'll be fine, but usually it goes nuts. Every slight once in a while it'll even NOT come back to normal. It'll just keep revving. Often after I turn it off and turn it back on after that it'll do it again. Vary rarely, it'll also speed up greatly WHILE I'm driving. Like yesterday, I was driving along like normally through my neighborhood when suddenly the car frantically speeds up. When I come to a stop finally (my front brakes need changed) I can hear the engine still high revving and trying to move the car forward more. When I let off the brake the car propulses it's self forward greatly. I live on the top of a hill and I never touched the gas once. It got me up the hill. haha!! Then when it realises what it's doing, it'll dramatically reduce revs after it goes BWAAAAAA like the engine ran out of breath. Other times, however, the car is perfectly fine.
What sensor is it? Can I fix it myself?
Thanks!!!
:want:4.5
I have a '89 Sedan Deville with the 4.5. Ever since I got it, it'd have the high initial idle thing that we all have. it'll also speed u prandomly as well. I'll go through a full breakdown of what it does so that I'll know exactly what to fix so it doesn't cost me a billion dollars. lol.
When I got to turn on the car, sometimes the pedal will pulste it's self as if it's trying to prime a carbeurator. It's obviously FI though. When it does this, the idle will skyrocket. Every once in a while it'll be fine, but usually it goes nuts. Every slight once in a while it'll even NOT come back to normal. It'll just keep revving. Often after I turn it off and turn it back on after that it'll do it again. Vary rarely, it'll also speed up greatly WHILE I'm driving. Like yesterday, I was driving along like normally through my neighborhood when suddenly the car frantically speeds up. When I come to a stop finally (my front brakes need changed) I can hear the engine still high revving and trying to move the car forward more. When I let off the brake the car propulses it's self forward greatly. I live on the top of a hill and I never touched the gas once. It got me up the hill. haha!! Then when it realises what it's doing, it'll dramatically reduce revs after it goes BWAAAAAA like the engine ran out of breath. Other times, however, the car is perfectly fine.
What sensor is it? Can I fix it myself?
Thanks!!!
:want:4.5